N E W S R E L E A S E FOR IMMEDIATE RELEASE Palm Beach Gardens, Florida Contact: Steven E. Nielsen, President and CEO H. Andrew DeFerrari, Senior Vice President and CFO (561) 627‐7171 May 13, 2015 DYCOM INDUSTRIES, INC. ANNOUNCES RELEASE OF FISCAL 2015 THIRD QUARTER RESULTS AND CONFERENCE CALL SCHEDULE Palm Beach Gardens, Florida, May 13, 2015 — Dycom Industries, Inc. (NYSE: DY) will release its fiscal 2015 third quarter results on Tuesday, May 19, 2015, after the close of trading on the New York Stock Exchange. Dycom has scheduled a conference call for Wednesday, May 20, 2015, at 9:00 a.m. (ET). To participate in the conference call, dial (800) 230‐1085 (United States) or (612) 288‐0337 (International) ten minutes before the conference call begins and ask for the “Dycom Results” conference call. A live webcast of the conference call, along with related materials, will be available at http://www.dycomind.com under the heading “Events.” If you are unable to attend the conference call at the scheduled time, a replay of the live webcast and the related materials will be available at http://www.dycomind.com until Friday, June 19, 2015. Dycom is a leading provider of specialty contracting services throughout the United States and in Canada. These services include engineering, construction, maintenance and installation services to telecommunications providers, underground facility locating services to various utilities, including telecommunications providers, and other construction and maintenance services to electric and gas utilities.